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EBlilNlilZERV G. BLAKSLEE, OF SING SING, NEW YORK. l i Letters Patent No. 661,782, dated July-'1.6, 1867.

IMPROVEMENT IN JOIN'IS FOR IRON PIPES.

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TO ALL WHOM IT MAY CONCERN:

Beit rknown that I, EBENEZER G. BLAKSLEE, ot' Sing Sing, in the county-of Westchester, ond State of New York, have invented, made, and applied to use a. certain new and useful Improvement in Joints for` Iron Pipes;

und' I d o hereby declare the following to be :i full, clear, and exact. description of the s'aid invention, reference being had to the annexed drawing, making part of this speccation, wherein- Figure 1 is a. longitudinalsection-of the improved joints; and

Figure2 is an end view of the socket. l

In connecting cast-iron pipes', it is necessary that one pipe slip into the next n sulicient distance to give solidity to the joint. The tightness of that joint, however', depends upon a ring 'of lend cast into the sockets after the pipes have been put together. 'The casting of this ring of lead is diihcult, because 'the joint hns iii-st to be Vpacked with oukum or similar material to-*prevent the lead running througli, and in horizontol joints it is necessary that a 4mould be formed by pipe-clay or similar material around the joint before the lead is poured. With the usual precautions it often happens that a jet of' melted lead will run into the pipe and form an obstruction, particularly in pipes for water-closets. The amount of lead required for each joint isconsidernble, because it extends so far into the joint.

The nature of my said invention consists in a socket foimed with two enlargments. 'Ihe first or smaller enlargement is .of a size to receive the end ofthe next length of pipe, and fitting tightly gives c, sufficient length of bearing to make a relicblejoint. The second enlargement of the socket receives the lead or soft metal, that makes the joint tight, and this being comparatively shallow, requires less lead than the usual joint, and at the Vsame time can be made'equally tight by caulking. I employ a lead ring cast in 4a suitable mould and slipped over Y the end of the pipe and pressed into the socket when the pipes are placed together, and then caulked or driven 'rmlyinto the socket, and this makes as firm and reliable a. joint as when the lead is cast directly into the socket, and the inconvenience, delny, and diioulties attendant upon the casting into thejoint are avoided,

In the drawing, a represents part of a length of pipe, on which is the socket b, having the first interior enlargement 1 1 of c size t receive the end c of the nextvi'ength of pipe. This end c should he somewhnt'thickened to strengthen it. 2 2 is the second enlargement ofthe socket receiving the lead'pccking d. This leed packing might be cast into the socket 2. after the pipes are put together,. but I prefer and use a lead band cast in a seperate mould of the right size and slipped into place and canlked. .A slight recess castwithin the socket may be employedas shown in thevdrawing, the same holding the lend ring more rmly in place when caulked.

What I claim, and desireto secure by Letters Patent, is

The joint for cast-iron pipes-formed by. socket, with two enlargements at one end of' a, length of pipe, receiving the end of the next length of pipe, and made tight by the packing d, as set forth.

I also claim forming the packing for the joints of cast-iron pipes of a ring of soft metal cast in a separate I mould, and onulked or driven into the joint, as set forth.

i In witness whereof I have hereunto set my signature this 16th day of March, A. D. 1867.

` E. G. BLAKSLEE.

Witnesses:

' Ones. H. SMITH,

GEO. D. WALKER. 

